Completed Sql4

[sangeeths29]

No description provided.

[super30admin]

The student has not provided any solution to the problem. Without any code or approach to evaluate, it's impossible to assess correctness, time complexity, space complexity, code quality, or efficiency.

To provide meaningful feedback, the student needs to submit their attempted solution. For SQL problems specifically, they should include:

1. The complete SQL query they attempted
2. Any accompanying explanation of their approach
3. Sample input/output if available

For future submissions, I recommend the student:

1. Clearly state their approach to solving the problem
2. Include all relevant code
3. Test their solution with various edge cases
4. Explain any assumptions they're making